![]() ![]() Here are a few suggestions for solving these puzzles. However, intermediate sudoku puzzles are more challenging and require a few strategies. Fill in the blanks with numbers between one and nine, and use notes to help you with the tricky parts. Although they take a bit more effort, this type of sudoku puzzles has the same basic rules. To learn more about different Sudoku puzzles, take a look at the following articles: How to Solve a Medium Level Sudoku Puzzles?īeginners and intermediates alike can gain from learning how to solve sudoku puzzles of medium difficulty. These puzzles are fun to play and are great gifts. You can apply a QR code to any 9x9 sudoku as an example, to make it distinctive. One way to make them more appealing is to customize them using QR codes. Sure that probably classifies it as a hard level puzzle, but lets not claim that hard means that no expert can solve it.Įven the hardest Sudoku has been solved by a human, and it surely has a "branching factor" of 5 or more for some of the puzzle.25X25 Sudoku Www Topsimages Printable Sudoku 25X25 Printable - There are many number of different ways you can use Printable Sudoku Puzzles. No the branching factor wont be 2 everywhere, but for a few 1's here and there, the odd 3 may approximately balance that out. My solver fills all of such cases in without even having to recurse. ![]() ![]() Only the simplest of rules (given in the definition of the game) are required to work out the value when there is only one possibility, such as when there is only one number left in a given row. If every move were of that difficulty then it is most certainly human-solveable! I know I could do it. There are two possibilities until you apply the rule and solve the square. The minimum of this will almost certainly often be two for a medium difficulty puzzle, sometimes 3 or maybe even 4 for a hard/expert human level puzzle. I'll define "branching factor" to mean how many numbers have not yet been eliminated for the cell with the lowest number of non-eliminated values. Most 9x9 puzzles have a branching factor of 1 in most if not all stages.I don't know why you're saying that. That would be impossible for humans to solve. Meaning the square with the least amount of fillers in each stage is 2. It HAS to be possible, since the puzzle is meant to be solved by a human.īragging only in this thread, please (for now), don't spoil it for me, yet.īut that is assuming a branching factor of 2 everywhere. I changed my "blazingly fast" 9x9 solution to work with 25x25 board, and, well, it has been running for half an hour now. The "numbers" version is generated from the "letters" version with a simple program. NMUA.E.F.V.WJ.B.RGKMe and my friend have double checked it, so it should be correct. ![]()
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